Adjustable wrench.



No. 699,972. f Patented Apr. 29, |902.

F. w. nown.

ADJUSTABLE WRENCH.

` (Application led Dec. 2, 1901.)

(N0 Model.)

Ilm.. /ff

TN: nofws PETERS am Puo-Tammo.. wAsHrNGTomp c.

UNITED I STATES f Femm-CK.

-A-furthereobject"is.toprlovide nansfo" i cdrely clamping -the movable jawf to'it'shad.- I justedfp'osition, said planiping' device being quickly tightened arid easily released.A12 v Vtifllv these. ends-in viewthe invention con/- si-sts inthe-combination of devices andin the construction and arrangelrnen'irofv parts; W-lricirwill Lbe lhereinater fullllylde cfr'ibed. and @lam "1 if.;

1 Reference is 'to be had tro/Atheacconipanyin i. drawings,forrninga'part ofthils lspecifica on,` in' whchsihiilfarharacters ,Ot ,referee cate corresponding parts in`all thevfi'gures Figure side View of anuijf'wr nych liav-v l ing adjustable jaws constructed ina'cciorrl-V ance with my .inventionjm thewdottued lines showing-thejaws-mved tgzhei srireadrosir tions. i Fig 2is`an edgejviewof the wrench;K Fig. 3 is a side view ofA the bar or bodyl of the wrenchi gxEig figilagsideuiviewof one of the adjustable jaws. Fig. 5 is an underworhottom plan'iview of said adjustable jawshwn by Fig. 4. Fig is afsidefvieWLpflQne of the clamping-plates, and Figs? is an edge View thereof.

The bar or body 5 of the improved Wrench is provided at its end portions with the rigid jaws 6 7. Opposed to the rigid jaws are the adjustable jaws 8 9, and with said adjustable jaws engage the pairs of clamping-plates 10 l0u and 1l ll, all as will -hereinafter more fully appear.

The bar or.body 5 is recessed at opposite ends of its central portion in order to produce the reduced portion 12 13, each reduced portion being in a single piece with the body and PATENT OFFICE.

E lfecl'fsfsiniftlfeopposite.fadesof the boldysaid recesses forming th'e'right-angular are 'formed-the locking-recesses f 14,' "said resolidunbrolen central portion thereof! 'Each nates in the shoulderIl'Stliat,isji'nclinedgto l @fig clin'ed transversely;

body has the edges which lie next to the tang undercut or beveled, as indicated at 22 in Figs. 2 and '3, whereby the beveled edge 20 of the Yshank'on the-adjustable jaw may t snugly in the undercutpedge 22 of the rigid jaw. s 1

Each pair of clamping-plates l0 lOior 111'1 cooperate with the reduced portion f the-body and the shank of one of the adj ustable'jaws. The plates forming the pair are fitted against opposite faces of the reduced portion, so as IOC" to lie on opposite sides of the body, as shown p by Fig. 2, and said plates are provided with the straight edges 23 and with the lugs 24, said rigid edges adapted to bear against the shoulders 12 or 13 and to have the lugs 24 en ter the recesses 11 in the body. (See Fig. 1.) The other edges of the plates are inclined, as indicated at 25, and are beveled or undercut, as at 26, and these inclined or beveled edges ofthe plates lie adjacent to the inclined edges or shoulders 15 of the reduced portion 12 or 13, whereby said inclined and undercut edges of the pair of plates are brought into cooperative relation with the beveled edges 21 on the members forming the shank of the adjustable jaws. Each pair ot plates have the holes 27, adapted to register with holes 2S in the reduced portion of the body, and through these coincident openings is adapted to pass one of the two fastening-bolts 29, the latter having ahead 30 at one end and adapted 4to receive athumb-nut 3l at its other end, whereby the bolt and the nut maybe adjusted to clamp the pair of plates laterally upon the reduced portion ot' the body and upon the shank of the adjustable jaw.

Itis evident that the thumb-nut 3l at either end of the implement may be released in order to relax the engagement of one pair of clamping-plates with the shank of one adjustable jaw, and this jaw may now be moved in an inclined direction to the axis of the implement for the purpose of spreading the pair of companion jaws or of bringing said pair of jaws closer together, after which the thumbnut should again be tightened. The slidable engagement of the undercut edges of the shank on the adjustable jaws with the beveledA edges 22 of the rigid jaws and with the beveled edges 26 of the pair of companion plates limits and directs the movable jaw and maintains the latter in proper relation at all times to the active face of the rigid jaw. The pair ot clamping-plates have interlocking engagement with the body, and they are adapted to be drawn by the nut and bolt into close frictional engagement with the shank of the adjustable jaw, thus serving as an efficient means for firmly holding the jaw in its adjusted position relative to the rigid jaw.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. Anadjustablewrench,comprisingabody havinga rigid jaw, an adjustable jaw slidabl y fitted to the body, clamping-plates engaging with saidr body and with the adjustable jaw, and means for firmly clamping said plates upon the adjustable jaw.

2. Anadjustablewrench,comprisingabody having a tang and a rigid jaw, an adjustable jaw having a bifurcated shank which is slidably fitted to the tang, and clamping-plates engaging with said shank of the adjustable jaw and held on the body.

3. An adj ustablewrenclncomprisingabody having a reduced portion and a rigid jaw, an adjustable jaw having a shank which is slidably fitted to the body, and clamping-plates fitted to the reduced portions of the body and engaging with the shank of said adjustable jaw.

4. Anadjustablewrench,comprisingabody having a reduced portion and a rigid jaw, an adjustable jaw, and clamping-plates fitted to the reduced portion and having interlocking connection with the body, and also engaging with the adjustable jaw.

An adjustable Wrench,comprisingabodj having a rigid jaw, an adjustable jaw provided with a shank which has beveled edges, clampingplates fitted to the body and engaging the beveled edges of said shank, and means for laterally clamping said plates t0 the body.

6. Anadjustablewrench,comprisingabody having a rigid jaw and an undercut guiding edge, an adjustable jaw provided with ashauk having beveled edges one of which engages with the guiding edge, clamping-plates fitted to the body and engaging with the other beveled edges of the adjustable jaW-shanks,and means for laterally clamping said plates upon said shank.

7. An adjustable wrench,comprisingabody having a reduced portion, a tang, and a rigid jaw, an adjustable jaw provided with a shank which embraces the tang, clamping-plates fitted to the body and engaging with said shank of the adjustable jaw, and means for laterally clamping said plates upon the reduced portion of the body and the shank of said jaw.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK W. BROWN.

IOC) 

